Home / 21,488.96-32,229.60-13,674.56

Finding the Fourth Proportional to 21,488.96, 32,229.60 and 13,674.56

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Solution

The fourth proportional to 21,488.96, 32,229.60 and 13,674.56 is: 20,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.96 : 32,229.60 = 13,674.56 : x
  2. Step 2: Convert to fraction form
    21,488.96/32,229.60 = 13,674.56/x
  3. Step 3: Cross multiply
    21,488.96x = 32,229.60 × 13,674.56
  4. Step 4: Simplify right side
    21,488.96x = 440,725,598.98
  5. Step 5: Solve for x
    x = 440,725,598.98/21,488.96
  6. Step 6: Final answer
    x = 20,509.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.